Home / 19,758.76-29,638.20-5,719.96

Finding the Fourth Proportional to 19,758.76, 29,638.20 and 5,719.96

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Solution

The fourth proportional to 19,758.76, 29,638.20 and 5,719.96 is: 8,579.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,758.76 : 29,638.20 = 5,719.96 : x
  2. Step 2: Convert to fraction form
    19,758.76/29,638.20 = 5,719.96/x
  3. Step 3: Cross multiply
    19,758.76x = 29,638.20 × 5,719.96
  4. Step 4: Simplify right side
    19,758.76x = 169,529,318.47
  5. Step 5: Solve for x
    x = 169,529,318.47/19,758.76
  6. Step 6: Final answer
    x = 8,579.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.